Electrical cut-out.



PATENTED JUNE 4, 1907.

P. T. MONALLY.

ELECTRICAL CUT-OUT.

APPLIOATION FILED MAY 25, 1906.

2 ISHBETSSHEET 1 6 n a m a M a WA WN c M H M P WITNESSES I ,4 Tram/5Y5No. 856,085. PATENTED JUNE 4, 1907.

. PJT. MONALLY.

ELECTRICAL CUT-OUT.

APPLICATION FILED MAY 25, 1906.

2 SHEETS-SHEET 2 j INVENTOH Pmu PT. MCNALLY ATTORNEYS separatelinecircuit from the power house, or'

UNITEDsTArns PATENT oFFroE.

PHILIP THOMAS MoNALLY OF MANDAN; NORTH DAKOTA.

ELECT ICAL cur-our.

Specification of Letters Patent.

Patented June 4, 1907.

Application filed May 25,1906. Serial No. 318,766.

switches; or other electrical cut-outs. It is. especiallyintended forturning on and off any one ormore ofa system of arc lamps,

operated by a. single alternating current dynamo, where it is notprofitable to make a install a separate alternator for operating the arclamps and incandescent lamps. It

, may be used also .for' shutting a trans formers when not required. foruse, thus preventing loss 1 of -'power; 1n the ldle transformers; or forany other analogous purpose.

It consists in -the novel construction J and arrangement of'electro-mechanlcal parts 1n connection w th various circults in which aspecial small wire circuit from the power house extends, to. theinstrument which if works theIsnap-s'wi'tch, or otheranalogouselectrical cut-out, and operates a controlling electroemagnetwhichcloses two local circuits-in' which are -two other chemo-magnets,"

, one of which'cuts in the main line circuit into 4. cut m. or out, areshown in double lines.

a solenoid which turns the. switch, and the other one of whichlocal-circuits, with its electro-magnet'acts as a detent to preventrecurrent action as hereafter described.

Figure 1.is a front elevation of my new instrument with its partsconnected to the various circuits. I The main line, and branch linecontaining the lamp or lamps to be The controlling circuit from powerhouse, is shown by single heavy unbroken line, The

cut-in. circuit is shown by the crossed line and the detent circuit isshown by the dot anddash line. Fig. 2 is a vertical section of Fig.1takenv on about line 22 and looking in the direction of the arrow. Fig.2* is a sectional detail of the upper part of the solenoid 7 showing itsplunger .in elevated position.

Fig. 3 is-a detail on line 3-3 of Fig. 1 looking in the directionof'thearrow. Fig. 4 is a sectional detail through the switch operatingshaft taken-on line 4'.-4of Fi'grl, looking in the" direction of'thearrow.

Similar letters of reference indicate the same arts inall the views.

Referring to Fig. 1, X Y are the main lines running from the power houseand X Y represent the two wires of a branch linein -which are locatedone or more lamps which by gravity when the circuit is cut-off; by theupward movement of the soft iron plunger forcing armature lever B awayfrom spring jaw contacts 0c as seen in Fig. 2 and; more fully describedhereafter.

.To the lower end of the soft iron plunger F is attached a rack bar Gwhich meshes with a loose inion I turning freely on' the shaft H. Thispinion on one side, see Figs, carries a spring pawl i which engages aratchet'wheel h rigidly fixed to the snaft H,- so that when the softiron plunger and the attached rack rise the pinion I is turned andthrough pawl i gives the necessary turn to the ratchet wheel h and theattached shaft II.

This shaftis arranged coaxially or "concenthe power house, or any otherremote point,

a small iron wire circuit from the powerhouse is extended to the1nstrun1ent,.-as shown by the sin le heavv lines 0 0 and in one of thesewiresis placed a key or circuitcloser C One of these wires 0 isconnected to a'binding post '0 and thenceby wired to an electromagnet(1., The other wire 0 is connected. \to the binding post 0 and thence bywire a to the other terminal of the helix of the same electro-nlagnet C.This circuit I term the controlling circuit and when it isclosed at thepower house-it serves to actuate the electro-magnet' C which I term thecontrolling magnet. This ele'ctro-magnet has an armature lever Efulcrumed at 6 and bearing anarmature e, playing upon the poles of theelectro-magnet O. The armature is normally held awayfroni the magnet bya coil spring 6 at one end of the lever, and the other end of the leverbears across head contact plate e that simultaneously closes two localcircuits, one of which cuts in the main line current into the solenoid,and the other of which operates the detent magnet for the purposehereafter described.

The circuit which cuts in the main line into the solenoid acts upon theelectromagnet B and is indicated by the crossed lines n n n n "rt" n n.It flows from the local battery N and has two points at which it may beclosed or opened. One of these points is between a pivoted bar J. andspring jaw contacts k, and thiother-point is between the cross head (2ol lever E and the subjacent contact 71.

The detent circuit, acts upon electro-rnagnet D as willbe more fullydescribed hereafter. It is shown by the dot and dash line m, m, m m, m,m m. 'lt llows from the local battery M and is opened and closed betweenthe cross head e of lever E and the subjace-nt contact m.

To operate the solenoid two lead wires w y connect the main line wiresto the fuse block Z of my instrument. One wire a: con meets with :0 andbinding post andspringjaw contact at. The other wire '31 connects withwire y, binding post 3 and wire g with one terminal of the solenoidcoil. The other terminal of this coil connects by wire it with armaturelever B". This lever is lulciumerl upon a post in and has an armature ifthat is normally held away l'rom the poles of the electro-i'nagnct l3 bmeans of a spring t). The other end of this lever is formed with a knifeedge l) which when arms! l is drawn down, passes between the spring--jaw contacts :r. so that when clectro-n:agnci B is energized by thebattery .I through (:o ntrol electro-magnet (l, the armature lever B isdrawn down and cuts in the line current into the solenoid coil throughthe following path: wire m, post 11 spring-jaw contact :r. armaturelever B, wire at", the wire of the solenoid and out through wires y andy.

The ell'ect ol the above cutting-in ol the solenoid L5 to raise the softiron plunger l and rack bar G and thus turn the snap switch. As theplunger rises. as indicated in dotted lines in Fig. 2 and full lines inFig. 2, it forces out arn'iature lever B from spring-j aw contact 0:,thus throwing the solenoid out of circuit and allowing the soft ironplunger and attached rack bar to drop, and unless prevented this actionof the solenoid would be repeated as long as contact key 0 at the powerhouse was held down. This action however is prevented in the mannerdescribed farther alon Referring to Fig. 2, it will be seen that thereis a cam i attached to the side oi pinion E and when the pinion isturned by the rise of the soft iron plunger and its attached rack barthis cam strikes against an insulating block on the bar J and as thisbar is pivoted at its upper end 1, the lower end of the bar is pressedoutwardly, as shown by dotted lines, separatingthe bar J from thespring-j aw con tacts 7c, and bringing armature D within ef fectiverange of electro-magnet'D, where the armature i's firmly held as long ascontact is maintained at power house. The two parts (bar J and contactsis) form apart (see Fig. 1) of the crossed-line circuit ofelectro-magnet B and this break in the circuit demagnetizes magnet B,and when the iron plunger falls the action of the solenoid would berepeated and the whole instrument useless for the purpose for which itis intended. To bring the lighting and the extinguishing of the lampunder definite and exact control, it is neces sary to prevent therecurrent cutting-in and cutting-out of the solenoid, and this is doneby the detent electro-magnet D and its local battery M as will be nowdescribed.

T he elcctro-magnet I), 1, has an armature l) mornted on lever D whichis fulcrtmed in the middle and at its other end is pivoted to a link bar1), Fig. 2, which connects it with an ins: lated block ZfiXed to the endof the bar J. A'spring Z pulls the bar J down into contact with jawslc'and holds the armati re D normally away from the electromagnet I).ll, however, this electro-mamiet D is energized and the soft ironplunger of the solenoid starts to move up in the solenoid and turnspinion l throtgh rack bar and raises cum 1' innnediately breakingcircuit through bar J, this movement of bar J from cam i, brings thearmature D of magnet D in close proximity tosaid magnet l) where it isclasped and firmly held, thus immediately preventing the elosu re of thecirc it through electromagnot B. The circrit through electro-magnet Bcannot be restored until contact at the power ho se isbroken andrestored. Thus the clos re of key C at the power house is made to closethe detent circuit thro"gh dc,- tent elcctro-magnet D and hold bar Jaway from contact it, so long as key C is kept closed, so that one elosure of key (l makes only one movement in the soft iron plunger ol' thesolenoid and not a repeated or recurrent movement of the soft ironplunger, which would alternately turn on and oil the lamp,

1 claim 1. An electrical cut-out, comprising an 'e'lectrr -mechahicaldevice for turning a switch, an elcctro-magnet with local batterycircr-it for cutting-in said electro-mechaiiical device to the mainline, a controlling electromagnet with an individual circuit extendingto the control station, a circuit closer placed in the cut-in magnetcircuit and operated by the control magnet, and means for making oneimpulse of the control circuit produce one movement only of the electro-mechanical switch moving device.

2. An electrical cut-out, com prising an electro-mechanical device forturmng a switch, an electro-magnet with local battery circuit forcutting-in the saidv electromechanical device to the main line, acontrolling clectro-inagnct with an individual circuit extending to thecontrol station, a circuit closer placed in the cutin magnet circuit andoperated by the control n'iagnct, a detcnt clectro-magnet with local battery cir" cuit for checking the clectr i-mechanical cutin device alterits lirst moven'icnt and circuit closer for this last named circuit alsooperated by the control magnet simultaneously with the cut-in magnetcloser.

I). An electrical cut-out, comprising a solenoid with circuit contactsarranged in a main line lead, a rack bar attached to the plunger of thesolenoid,- a shaft for turning the switch and having a loosepinionthereon engaged hy the rack bar and hearing a mi, a ratchet wheelrigidly lixed to the shalt and engaged l v the pawl, a cut-inel'ectrotnag net operating the contacts of the solenoid, a local hattercircuit. for the lltlli magnet with circuit c oser therein and a controlelec tt'O-tntrgtu-l arranged to adjust said last. named circuit closerand having an individual circuit extending to the control station. I

4. An ltctrical cut-out. comprising a solenoid nith circuit contactsarranged in a main line lead, a rack bar attached to the plunger ol' thesolenoid, a shaft for turning the switch and having a loose pinion.thereon engaged in the rack bar and bearing a pawl. a ratchet wheelrigidly fixed to the sh lt nd engaged by the pawl, a cut-in eleetroe netoperating the contacts of the soleni local batter circuit for the cut-in111i with circuit. closeetl'ierein, a circuit breaking switch for thecut-in circuit opened o the switch turning devices, a detent circuitwith an electriemagnet and stop device for holding open the circuitbreaker of "the cut-in magnet alter its initial movement, and a controlmagnet and circuit extended to the control station, said control me -netbeing arranged to close the circuit closers of both the cut-in magnetand the detent magnet.

5. An electrical cutout, comprising a solenoid with circuit contactsarranged in a main line lead, a rack bar attached to the plunger ot thesolenoid, a shaft l or turning the switch and having a loose pinionthereon meshing with the rack and provided with a am and a pawl,- aratchet wheel rigidly att. ached to the shaft and engaged by the pawl,

a pivoted bar arrai'iged in the plane of the cam and moved laterally bythe same and forming a part of the circuit breaker, a cut-in electromagnet for the solenoid having its circuit completed through said barand circuit breaker, and a control magnet operating a circuit closer ofthe cut-in circuit, and means for holding the pivoted bar circuitbreaker in an open position after its initial movement. I

ttain electrical cut-out, comprising a so lenoid with circuit contacts,arranged. in the main line lead, a rack bar attached to the plunger ofthe solenoid, a shaft for turning the switch and having a loose pinionthereon meshing with the racl; and provided with a am and a pawl, aratchet wheel rigidly attached to the shaft and engaged by the pawl, apivoted bar arranged in the plane of the cam and moved laterally by thesame and forming a part oi a circuit breaker, a cut-in eleetro-magnetfor the solenoidhaving its circuit completed "irough said bar and cir--cult breaker, a control magnet and circuit operating a circuit closer ofthe cut-in circuit, a detent magnet and circuit. having a circuit closeralso operated by the control magnct and an armature lever and spring forsaid detent magnet, said lever being arranged to hold the circuitljn'eaking bar oi" the cut-in magnet in its open position where ever thedetent magnet cla its armature.

T, An electrical cut-out, comprising a main line with a lead for thecut-out device and a. hranch line for th: lamps to beoperated, asolenoid with circuit cont-acts arranged in said lead, a rack barattached to the plu'nger of the solenoid, a shaft with a clasp on itsend engaging the snap-switch ol the branch circuit, a loose pinion on.said shaft meshing with the rack and provided with a cam and a pawl, aratchet wheel rigid lv attached to the shaft and engaged by the pawl, apivoted ha: arranged in the plane of the cam and moved laterally by thesame and forming a part of a circuit hrealter, a cut-in eleetro-magnetfor the solenoid having its circuit completed through said bar andcircuit breaker, a control magnet and circuit operating a. circuitcloser of the cut-in circuit, a detent magnet, and circuit having acircuit closer operated hy the control magnet and an armature lever andspring for said detent magnet, said lever heing arranged to hold thecircuit breaking bar in an open position whenever the detent magnetclasps its armature. 7

PHILIP THOMAS idcNAliliY. YVitn esses J. R. GILBRE/tlil, l). M. Snoou.

